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 Find useful information about your everyday work with optical tweezers. If you have suggestions, some more tips, ... , just send an email. Your contribution will be posted with your name and address enclosed. |
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cell heatingWhat is the extent of cell heating due to absorption of laser power? Find a brief summary and some literature dealing with this topic [go
on...]
fiber couplingSome basic advices and considerations for efficient coupling of light into an optical fiber [go
on...]
useful linksA large number of links about various topics, e.g. laser safety labels, laser diode guide, .. [go
on...]
how do clean opticsWhich materials can be used to clean your optics without damaging them; find tips, suggestions, .. [go
on...] cell heatingThe extent of cell heating depends on several factors, and may, depending on your experiment, your type of cell and your conclusions, be of primary concern. The amount of heating up your cell is in the regime of approximately 1,5 °C per 100 mW applied laser power. Find more information, references, ... viewing the enclosed PDF-file. top
fiber couplingAll optical fibers operate by total internal reflection, having an inner region of high refractive index n1 (core) and a cladding of lower index n2. Light entering the fiber within the acceptance cone is therefore confined by repeated reflection at the core cladding interface. Fiber input and output behaviour is usually descriped in terms of numerical aperature NA. NA = n0 * sin a a = sqrt[n12 + n22] ..... half acceptance cone angle n0 ..... refr. index of surroundingThe focused beam must at least match the requirement of having beam angles lying in the acceptance cone. For further informations see Fiber Coupling Basics Gaussian Optic Basics top
useful linksDanger Sign Request Pageyou can order a Laser Danger Sign from Coherent, Inc. for FREE Laser Safety Labels and Signsdownload different Laser Safety Labels and Signs from SAM's Laser FAQ top
how to clean your opticsIn the enclosed PDF-file PDF-file you will find a number of tips and suggestions how to clean your optics; what materials can be used, ... top
last modified: January 5, 2001 send comments to the webmaster
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